<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <!-- 搜索栏区域与添加用户区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <!-- 搜索 -->
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="6">
            <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>
      
      <!-- 表单视图区域 -->
     <el-table :data="goodsListData" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="102px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="80px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="160px">
            <template slot-scope="scope" >
                <!-- 使用时间过滤器转换时间串 传递的数据|函数-->
                {{ scope.row.add_time| dateFormat }}
            </template>
        </el-table-column>
        <el-table-column label="操作" width="120px">
            <!-- 通过作用域插槽获取数据 -->
            <template slot-scope="scope">
                <el-button type="primary" size="mini" icon="el-icon-edit"></el-button>
            <el-button type="warning" size="mini" icon="el-icon-delete" @click="removeById(scope.row)"></el-button>
            </template>
        </el-table-column>
    </el-table>

    <!-- 分页视图区域 -->
    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[20, 50, 100, 200]"
      :page-size="20"
      layout="total, sizes, prev, pager, next, jumper"
      :total="this.total">
    </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  name: 'list',
  data() {
      return {
        //查询参数对象
          queryInfo: {
              query: '',
              pagenum: 1,
              pagesize:10
          },
          //存放数据库所有数据
          goodsListData: [],
          total:0,
    }
  },
    created() {
    this.getGoodsList()
  },
    methods: {
        //根据页码展示数据
      async  getGoodsList() {
          const {data:res}=await  this.$http.get(`goods`, {
                params:this.queryInfo
            })
            if (res.meta.status !== 200) {
                return this.$message.error('获取数据失败')
            }
            this.goodsListData = res.data.goods
            this.total=res.data.total
            console.log(this.goodsListData)
            console.log(this.total);
            return this.$message.success('获取数据成功')

        },
        //改变展示条数
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        //当前页面发生改变
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getGoodsList()
        },
        //绑定删除按钮
        async removeById(row) {        
           const confirmResult=await this.$confirm('此操作将永久删除该数据, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)
           if (confirmResult !== 'confirm') return this.$message.info('取消删除')
            //如果点击确定触发，删除数据操作
           const { data: res } = await this.$http.delete(`goods/${row.goods_id}`)
           if (res.meta.status !== 200) {
               return this.$message.error('删除数据失败')
            
           }
           this.getGoodsList()
          this.$message.success('删除数据成功')
        },
        //通过路由跳转到添加商品页面
        goAddpage() {
            this.$router.push('/goods/add')
        }
  },
}
</script>

<style lang="less" scoped></style>
